| 2000092 | Computers & Information Processing | - | English |
| 2001267 | Computers For Kids: Sinclair ZX-81 Edition | - | English |
| 2000766 | Computers for Accountants | - | English |
| 2001286 | Computers in Schools | - | English |
| 2000094 | Computers in the Primary School | - | English |
| 2001170 | Computing for the Hobbyist and Small Business | - | English |
| 2000093 | Computing in Print | - | English |
| 2000095 | Computing is Easy | - | English |
| 1053 | Con-Quest | ZX-Spectrum 48K | English |
| 24590 | Conan | ZX-Spectrum 48K | English |
| 23193 | Conceal | ZX-Spectrum 48K | English |
| 18950 | Concentration | ZX-Spectrum 48K | English |
| 13239 | Concentration | ZX-Spectrum 16K | English |
| 39451 | Conception | ZX81 1K | English |
| 39581 | Condensation Street | ZX-Spectrum 48K | English |
| 44650 | Condition Red | ZX81 16K | English |
| 40004 | Cones | ZX-Spectrum 48K | English |
| 10746 | Confidential | ZX-Spectrum 48K | English |
| 25732 | Config | ZX-Spectrum 48K | English |
| 1042 | Conflict | ZX-Spectrum 48K | English |